八年级下英语生物说课稿
八年级英语下册：Unit 3 Amazing Animals Lesson 17说课稿(冀教版)
Unit 3 Amazing AnimalsLesson 17 people love petsIntroduce myself:Good morning, ladies and gentlemen. I’m an English teacher from Xiajin. Now I will say Lesson 17 in Unit 3.I prepare to say it from 5parts .Firstly, let me talk about the teaching material.Part One :Analysis of the teaching material㈠.Status and functionsUnit 3 is mainly talking about animals, Lesson 17 is about pets, of all the animals, pets are the closest to humans, The topic is related to real life, and it is popular to keep pets, and students are interested in pets. Students can also improve their expressions and imagination and we can also cultivate their loving heart by this lesson. So lesson 17 is important in this unit. In one lesson we should establish key and difficult points, I will talk about them below.㈡.key points and difficult points1.Key points:①Learning how to describe one’s real or imaginary pet.②Learning how to make a dialogue about the topic “pet”2.Difficult points:Learning how to make a dialogue about the topi c “pet”Part Two: Teaching goals㈠. Language goal1.New words :amazing ,pet, imaginary, lovely ,duck ,keep, goose.2.Key sentences:①She likes to sleep in the sun.②.She plays with me when I e home from school.③.I will keep it under my desk.④.I will need to plant a tree in my bedroom.㈡.Ability goal1. To enable students to describe their pets or imaginary pets.2. To train the ability of working in groups㈢.Moral goalAccording to the lively teaching, improve their interests in English, and cultivate their loving heart. Then let them love animals and protect them.I put up all the goals to let the students master the language points, at the same time, train their abilities of the four skills, in the usual teaching,teachers should pay attention to their moral education. Besides, a good way to achieve my goals is to use a proper teaching methods, I will talk about my teaching methods below.Part Three: Teaching methods and learning methods㈠Analysis of the students:Students are the most important part in the class, so we should break traditional teaching methods, give the time in class back to the students, in this way we can excited their enthusiasm. Let them be the host in the class. I will use the following methods.㈡teaching and learning methodsAbout teaching methods, the first one is giving them tasks, the second one is cooperation study by groups, the third is petition.About learning I will let them use listening, reading, self-study, result show, and acting out the dialogue, writingPart Four: Procedures of teaching and methodsStep I: Lead inTake some cards with animals ,such as cat, dog, fish, monkey, goose, duck, snake, ask them what it is one by one ,When the picture of duck es out ,they may not know the spelling of duck, show it on the screen. Then say to them that some people regard them as pets, show pet on the screen. Then ask them: What’s your favorite animal? Why? Do you have a pet? why or why not? Some students may answer that their parents don’t allow them to keep, I will ask: why no t keep animaginary one? Show imaginary on the screen, Then tell them Danny has an imaginary pet ,Let’s see what it is. My purpose is to let the Ss put their hearts into it quickly and show their love to the animals.Step II: ListeningPlay the tape, the first time, let them listen with their books open, only listen, the second time, listen and follow the tape, try to let them understand the text After listening, let them fill in the blanks in a short dialogue. In order to improve their listening, I do this step.Step III;ReadingLet them read the text loudly ,When they are reading ,walk around the classroom ,If students have difficulties in understanding the dialogue, give them some help.My purpose is to practise their reading ability.Step IV:speaking After finishing reading, let them act out the text, Ask three students to act it out, then another three, then another three, If necessary, ask more students,I do it to improve their speaking ability.Step IV :Show tasks..I will refine some language points ,put it on the puter ,there are six .Each group has a point. Then I will let them prepare to explain the points. They can use learning materials or dictionary. When they are studying ,I will walk around the classroom to see if anyone or any groups have any difficulties, if yes, I will help them。
2019-2020年新冀教版英语八年级下册《unit 3 amazing animals》lesson17说课教案.doc
Unit 3 Amazing AnimalsLesson 17 people love petsIntroduce myself:Good morning, ladies and gentlemen. I’m an English teacher f rom Xiajin. Now I will say Lesson 17 in Unit 3.I prepare to say it from 5parts .Firstly, let me talk about the teaching material.Part One :Analysis of the teaching material㈠.Status and functionsUnit 3 is mainly talking about animals, Lesson 17 is about pets, of all the animals, pets are the closest to humans, The topic is related to real life, and it is popular to keep pets, and students are interested in pets. Students can also improve their expressions and imagination and we can also cultivate their loving heart by this lesson. So lesson 17 is important in this unit. In one le sson we should establish key and difficult points, I will talk about them below.㈡.key points and difficult points1.Key points:①Learning how to describe one’s real or imaginary pet.②Learning how to make a dialogue about the topic “pet”2.Difficult points:Learning how to make a dialogue about the topic “pet”Part Two: Teaching goals㈠. Language goal1.New words :amazing ,pet, imaginary, lovely ,duck ,keep, goose.2.Key sentences:①She likes to sleep in the sun.②.She plays with me when I come home from school.③.I will keep it under my desk.④.I will need to plant a tree in my bedroom.㈡.Ability goal1. To enable students to describe their pets or imaginary pets.2. To train the ability of working in groups㈢.Moral goalAccording to the lively teaching, improve their interests in English, and cultivate their loving heart. T hen let them love animals and protect them.I put up all the goals to let the students master the language points, at the same time, train their abilities of the four skills, in the usual teaching,teachers should pay attention to their moral education. Besides, a good way to achieve my goals is to u se a proper teaching methods, I will talk about my teaching methods below.Part Three: Teaching methods and learning methods[㈠Analysis of the students:[Students are the most important part in the class, so we should break traditional teaching methods, give the time in class back to the students, in this way we can excited their enthusiasm. Let them be the host in the class. I will use the following methods.㈡teaching and learning methodsAbout teaching methods, the first one is giving them tasks, the second one is cooperation study by groups, the third is competition.About learning I will let them use listening, reading, self-study, result show, and acting out the dialogue, writingPart Four: Procedures of teaching and methodsStep I: Lead inTake some cards with animals ,such as ca t, dog, fish, monkey, goose, duck, snake, ask them what it is one by one ,When the pic ture of duck comes out ,they may not know the spelling of duck, show it on the screen. Then say to them that some people regard them as pets, show pet on the screen. Then ask them: What’s y our favorite animal? Why? Do you have a pe t? why or why not? Some st udents may answer that their parents don’t allow th em to keep, I will ask: why not keep an imaginary one?Show imaginary on the screen, Then tell them Danny has an imaginary pet ,Let’s see what it is. My purpose is to let the Ss put their hearts into it quickly and show their love to the animals.Step II: Listening[Play the tape, the first time, let them listen with their books open, only listen, the second time, listen and follow the tape, try to let them understand the text After listening, let them fill in the blanks in a short dialogue. In order to improve their listening, I do this step.Step III;ReadingLet them read the text loudly ,When they are reading ,walk around the classroom ,If students have difficulties in understanding the dialogue, give them some help.My purpose is to practise their reading ability.Step IV:speaking After finishing reading, let them act out the text, Ask three students to act it out, then another three, then another three, If necessary, ask more students, I do it to improve their speaking ability.[Step IV :Show tasks..I will refine some language points ,put it on the computer ,th ere are six .Each group has a point. Then I will let them prepare to explain the points. They can use learning materials or dictionary. When they are studying ,I will walk around the classroom to see if anyone or any groups have any difficulties, if yes, I will help them。
生物说课稿英语模板
生物说课稿英语模板尊敬的各位老师，同学们：今天，我将与大家分享一堂关于生物的课程。
生物是自然界中最为神奇和多样的存在，它们以各种形态和方式存在于我们的周围，构成了地球生态系统的基础。
在接下来的几分钟里，我将带领大家走进生物的世界，探索它们的特点和生存策略。
首先，生物的基本特征是它们能够进行新陈代谢，这是生命活动的基础。
新陈代谢包括合成代谢和分解代谢，是生物体获取能量和构建自身结构的过程。
例如，植物通过光合作用将阳光、水和二氧化碳转化为葡萄糖和氧气，而动物则通过呼吸作用将葡萄糖转化为能量。
接下来，我们要了解的是生物的遗传和进化。
生物的遗传信息储存在DNA中，通过复制和转录过程，生物能够将遗传信息传递给下一代。
而进化则是生物适应环境变化的过程，通过自然选择，有利的遗传变异得以保留，从而推动物种的进化。
此外，生物的分类也是我们学习生物的重要内容。
生物学家根据生物的形态结构、生理功能和进化关系，将生物分为不同的界、门、纲、目、科和属。
例如，人类属于动物界、脊索动物门、哺乳纲、灵长目、人科和人属。
在生物的多样性方面，地球上已知的生物种类超过200万种，但科学家估计实际种类可能多达数千万种。
生物多样性不仅丰富了地球的生态系统，也为我们提供了丰富的资源和灵感。
最后，我们要认识到生物与环境的密切关系。
生物依赖于环境提供生存所需的资源，如空气、水、食物和栖息地。
同时，生物也通过各种方式影响和改变环境，如植物通过光合作用释放氧气，动物通过排泄物为土壤提供养分。
通过今天的学习，希望大家能够对生物有一个更全面的认识，理解生物在自然界中的重要性，以及我们如何与生物和谐共处。
感谢大家的聆听，如果有任何问题，欢迎在课后与我交流。
祝学习愉快！。
初中生物教案英语模板下册
Subject: BiologyGrade Level: 7-8Duration: 1 hourObjective:- To help students understand the basic concepts of [Topic Name].- To enhance students' ability to observe, analyze, and apply scientific methods in biological studies.- To foster students' interest in biology and their curiosity about the natural world.Materials:- Textbook- Worksheets- Pencils, erasers, and notebooks- Projector or whiteboard- Experimental materials (if applicable)Teaching Aids:- Powerpoint presentation or handouts- Videos or animations (if applicable)- Diagrams and chartsLesson Plan:I. Introduction (5 minutes)1. Warm-up: Begin the lesson with a brief review of the previous topic or a related concept.2. Introduction: Introduce the topic of the lesson with a captivating question or statement. Use a real-life example to illustrate the importance of the topic.3. Objectives: Clearly state the learning objectives for the lesson.II. Presentation (15 minutes)1. Explanation: Present the main concepts of the topic using clear and concise language. Use diagrams, charts, and visual aids to enhance understanding.2. Examples: Provide relevant examples to illustrate the concepts. Encourage students to think critically and ask questions.3. Interactive Activities: Incorporate interactive activities such as quizzes, discussions, or group work to engage students and reinforce their understanding.III. Practice (20 minutes)1. Worksheet: Assign a worksheet related to the topic. This will allow students to practice their knowledge and skills independently.2. Group Work: Divide students into groups and assign a problem-solving task related to the topic. Encourage collaboration and communication within the groups.3. Peer Review: Allow students to review each other's work and provide feedback. This will help them identify their strengths and weaknesses.IV. Conclusion (5 minutes)1. Summary: Summarize the key points of the lesson and review the learning objectives.2. Q&A: Open the floor for any questions or clarifications that students may have.3. Homework: Assign a homework task that will help students reinforce their learning.V. Assessment:- Evaluate students' understanding of the topic through quizzes, worksheets, and class discussions.- Assess students' ability to apply their knowledge through group work and problem-solving tasks.Lesson Evaluation:- Monitor student participation and engagement throughout the lesson.- Collect and review student work to assess their understanding of the topic.- Adjust the lesson plan as needed based on student feedback and performance.Additional Notes:- Be sure to use language that is appropriate for the students' level of understanding.- Encourage students to ask questions and participate actively in the lesson.- Provide opportunities for students to apply their knowledge in real-life situations.---Example Lesson Plan:Topic: PhotosynthesisObjective:- To understand the process of photosynthesis and its importance in the ecosystem.- To learn about the different stages of photosynthesis and the role of chlorophyll.- To explore the factors that affect the rate of photosynthesis.Materials:- Textbook- Worksheets- Pencils, erasers, and notebooks- Projector or whiteboard- Diagrams of the photosynthesis processTeaching Aids:- Powerpoint presentation- Video about photosynthesisLesson Plan:I. Introduction- Warm-up: Review the concept of photosynthesis from the previous lesson.- Introduction: Ask students, "What is photosynthesis and why is it important?" Use a real-life example, such as the importance of photosynthesis for the survival of plants and animals。
八下生物教案英语高中
八下生物教案英语高中Topic: Cell Structure and FunctionObjectives:1. Students will be able to identify the major organelles of a cell and their functions.2. Students will understand the importance of cell structure in maintaining life processes.3. Students will be able to compare and contrast plant and animal cells.Materials:- Whiteboard and markers- Pictures of different types of cells- Handouts with diagrams of a typical plant and animal cell- Microscopes for viewing cell samplesProcedure:1. Introduction (10 mins)- Begin the lesson by asking students what they already know about cells and their functions.- Explain that cells are the basic building blocks of all living organisms and that each cell has specific structures called organelles that perform different functions.- Show pictures of different types of cells and discuss their differences.2. Cell Organelles (20 mins)- Introduce the major organelles found in a typical plant and animal cell, such as the nucleus, mitochondria, endoplasmic reticulum, and chloroplasts (in plant cells).- Explain the functions of each organelle and have students take notes on their handouts.- Use the whiteboard to draw diagrams of a plant and animal cell, labeling the organelles and their functions.3. Comparing Plant and Animal Cells (15 mins)- Divide the class into groups and provide them with samples of plant and animal cells to observe under the microscopes.- Have students compare and contrast the structures of plant and animal cells, noting any differences in organelles and functions.- Ask each group to present their findings to the class and discuss the importance of these differences in maintaining life processes.4. Conclusion (10 mins)- Review the key points of the lesson, emphasizing the importance of cell structure in maintaining life processes.- Summarize the differences between plant and animal cells and their organelles.- Encourage students to continue exploring the fascinating world of cells and their functions. Assessment:- Quiz students on their understanding of cell organelles and their functions.- Evaluate group presentations on comparing plant and animal cells.- Collect handouts and microscope observations for review.Extension:- Have students conduct research on specialized cells in the human body, such as nerve cells or muscle cells, and present their findings to the class.- Explore the concept of cell division and its role in growth and repair processes in living organisms.Overall, this lesson plan aims to provide students with a solid foundation in understanding cell structure and function, allowing them to appreciate the complexity and importance of cells in the natural world.。
生物说课稿模板英语
生物说课稿模板英语尊敬的各位老师、同学们，今天我们将一起探讨生物学中的一个有趣话题。
生物多样性是地球上最宝贵的资源之一，它不仅为我们提供了食物、药物和原材料，还维持了生态系统的平衡。
接下来，我将通过以下几个部分来展开我们的课程：一、生物多样性的定义生物多样性通常是指在一个特定生态系统中，生物种类的丰富程度和它们之间的相互关系。
它包括了物种多样性、遗传多样性和生态系统多样性三个层面。
二、生物多样性的重要性1. 生物多样性对于维持生态系统的健康至关重要，它有助于保持土壤肥力、清洁水源和调节气候。
2. 它为人类提供了丰富的食物来源和药物资源，很多现代药物都是从野生植物中提取的。
3. 生物多样性还具有重要的文化和审美价值，它丰富了我们的精神世界。
三、生物多样性面临的威胁1. 栖息地破坏：由于城市化和农业扩张，许多生物的栖息地正在迅速减少。
2. 气候变化：全球变暖导致许多物种的生存环境发生变化，影响它们的生存和繁衍。
3. 入侵物种：外来物种的引入可能会对本地生态系统造成破坏。
四、保护生物多样性的措施1. 建立自然保护区，保护生物的自然栖息地。
2. 实施可持续的农业和林业实践，减少对生态系统的破坏。
3. 加强环境教育，提高公众对生物多样性保护的意识。
五、结论生物多样性是我们共同的财富，保护它不仅是对自然的尊重，也是对未来世代的责任。
我们每个人都有责任采取行动，为保护生物多样性贡献自己的力量。
通过今天的课程，希望大家能够更深入地理解生物多样性的重要性，并在日常生活中实践保护措施。
谢谢大家的聆听，如果有任何问题，欢迎在课后进行讨论。
仁爱版八年级下册unit5topic1sectionA说课稿
在教学过程中，我预见到可能出现的问题和挑战，如部分学生对被动语态的理解困难，以及野生动物保护意识的不强。为应对这些问题，我将提供更多的例子和练习，以帮助学生理解和运用被动语态。同时，我将结合学生的兴趣和生活实际，引入更多的野生动物保护案例，以增强他们的保护意识。课后，我将通过学生的作业、测试和课堂表现来评估教学效果。根据评估结果，我将采取相应的反思和改进措施，如调整教学方法、提供额外的辅导等，以提高教学效果。
二、学情分析导
（一）学生特点
我所面对的八年级学生，正处于青春期的他们，具有旺盛的好奇心和探索欲望。他们的认知水平在不断上升，已经具备了一定的英语基础，能够理解和运用简单的英语句子。他们对新鲜事物充满兴趣，但有时注意力容易分散。在学习习惯上，他们大多已经养成了预习和复习的习惯，但部分学生对主动参与的积极性有待提高。
（二）新知讲授
在新知讲授阶段，我将逐步呈现知识点，引导学生深入理解。首先，我会通过展示图片和实物，引入新词汇，如tiger、panda等。接着，我会用简单的句子展示一般现在时的用法，并通过例句和练习，让学生掌握一般现在时的构成和用法。然后，我会引入被动语态的概念，并通过对比示例，让学生理解并掌握被动语态的构成和用法。在讲授过程中，我会鼓励学生积极参与，提问和回答问题，以提高他们的理解能力。
4.结合学生的兴趣和实际生活，引入与野生动物相关的实际案例，让学生认识到保护野生动物的重要性，从而提高他们的学习动机。
三、教学方法与手段
（一）教学策略
在本节课中，我将主要采用任务型教学法和情境教学法。任务型教学法能够让学生在真实的任务中运用所学知识，提高他们的实际交际能力。情境教学法能够激发学生的学习兴趣，帮助他们更好地理解和运用所学知识。这两种教学法都符合现代英语教学的理念，能够有效提高学生的英语水平。
生物教师全英文说课稿(精华版)
生物教师全英文说课稿(精华版)生物教师全英文说课稿（精华版）一、教学目标通过本课的研究，学生应能够：1. 理解和掌握细胞的结构和功能；2. 理解细胞是生物体的基本单位；3. 能够描述细胞的三个基本结构：细胞膜、细胞质和细胞核；4. 能够运用所学内容解释细胞的生命活动。
二、教学重点细胞的结构和功能三、教学准备1. 多媒体课件；2. 细胞结构的模型和示意图；3. 白板、黑板、彩色粉笔；4. 相关课本和参考资料。
四、教学过程1. 导入（5分钟）通过展示一张细胞的彩色图片，引发学生对细胞的兴趣，并提出问题：“你们知道细胞的结构和功能吗？”2. 知识讲解（10分钟）通过使用多媒体课件和示意图，讲解细胞的结构和功能，包括细胞膜、细胞质和细胞核的作用。
3. 概念讲解（15分钟）引导学生理解细胞是生物体的基本单位，并解释细胞在维持生命活动中的重要作用。
4. 互动探究（20分钟）学生分小组进行实验，在老师的指导下观察植物和动物细胞的结构，并用显微镜观察细胞的细节。
5. 总结归纳（10分钟）学生展示实验结果，并老师帮助学生总结归纳所学内容，强化对细胞结构和功能的理解。
6. 练巩固（15分钟）提供一些与细胞结构和功能相关的练题，让学生巩固所学知识。
7. 课堂反馈（5分钟）以小组讨论的形式，让学生根据所学内容回答一些问题，并进行课堂反馈，以检验学生对细胞结构和功能的理解程度。
五、教学延伸学生可以利用课后时间，通过阅读相关资料和参考书籍，进一步深入了解细胞的结构和功能，并通过小研究报告或展示的方式分享自己的研究成果。
六、板书设计（根据具体内容设计相关板书，突出细胞的结构和功能）七、教学反思本节课教学过程中，通过导入、知识讲解、概念讲解、互动探究、总结归纳、练巩固和课堂反馈等环节，能够激发学生的研究兴趣，引导学生主动参与，提高了教学效果。
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八年级下英语生物说课稿
八年级下英语生物说课稿
八年级下册英语生物说课稿
一、教材分析：
1.教材的地位和作用：人体体内物质的运输是依靠人体循环系统来完成的。
人体循环系统包括血液循环系统和淋巴循环系统两部分。
血液循环系统的组成，包括心脏、血管构成的管道系统和管道内流动的血液三部分。
其中心脏是人体血液循环系统的重要动力结构，所以血管和心脏一节的重点是心脏的结构和功能。
这节内容为学习血液循环奠定了基础。
2.教学目的和要求：(1)基础知识：了解：人体心脏的位置理解：人体心脏的活动规律掌握：人体心脏的结构特点，以及与其相连的血管(2)能力培养：识图能力：通过观察、识别人体心脏的外形图、解剖图、示意图和图示的方位，培养学生的识图能力。
观察能力：通过指导学生观察、观看多媒体大屏幕，使学生掌握观察心脏结构的方法和步骤。
思维能力：引导学生观察、思考、分析总结心脏瓣膜与心脏内血液流动的关系，从而培养学生的思维能力。
(3)思想教育：理想教育：通过有关内容的教学，激励学生将来从事医学研究、解决医学难题，造福人类。
卫生保健教育：说明体育锻炼对心脏有的有利影响，引导学生加强体育锻炼，提高心脏潜力、增强体质。
3.教学重点：人体心脏结构和与其相连的血管关系复杂，它们共同构成血液流动的管道。
心脏是促使血液在这个管道中流动的重要动力器官，掌握这部分知识为下一节血液循环奠定了基础。
因此，心脏的结构及其相连的血管是本节课的重点。
4.教学难点：血液在心脏内只能按一定的方向流动：即从心房流向心室，从心室流向动脉，而不能倒流，这是由于心脏内具瓣膜，心脏瓣膜只能朝一个方向开启，从而控制血液在心脏内按一定方向流动。
那么，心脏瓣膜的位置及其开启、关闭与心脏内血流方向的关系是比较抽象和复杂的，是学生较难理解和掌握的。
为本节课的难点。
二、教学方法：配合现代化多媒体教学手段，运用启发、观察、对比和综合的方法，采用展开式网络知识结构教学法进行教学。
利用电脑多媒体教学，把电、声、光结合起来，实现声、像、图、文相统一。
真实、形象、生动地展示生物体，把抽象的内容形象化、具体化，吸引学生的注意力，使学生获得生动的
感性认识，激发学生的学习兴趣。
而网络式知识结构层次清楚、科学、简洁，符合生物学逻辑体系和学生的认识规律，有利于学生各方面能力的培养。
三、课堂设计：Ⅰ、复习提问，引入新课(约2分钟)Ⅱ、讲授新知识(约35分钟)1.利用电脑多媒体课件，真实生动地展现心脏的位置，通过启发式教学，引导学生观察、思维、总结归纳出心脏的位置。
教师把人体胸透的X光照片在银幕上播放，由于学生是首次看到人体胸透的真实情况，因而学生注意力能立即被吸引住，并留下深刻的印象，获
初二全科目课件教案习题汇总
语文数学英语物理历史
2得了生动的感性认识。
同时，配合放映人体心脏位置的绘画复合片，通过启发式教学，指导学生认真观察，引导学生积极思维，最后用三句话归纳出心脏的确切位置(转载自第一范文网，请保留此标记。
)(板书)，紧接着，介绍个别心脏位置异常的现象(如：右位心)，对学生进行理想教育。
2.利用电脑多媒体课件以及人体心脏模型，观察心脏的形态。
教师将人体心脏外形的正面观、背面观放大在银幕上显示，指导学生观察、观看，识别人体心脏的各个方位，然后，教师打开人体半身解剖模型的胸腔，摘取心脏，让学生观察心脏的形态，引导学生得出结论(板书)。
培养学生观察、思维、总结能力。
3.利用电脑多媒体课件及简易黑板图，讲授心脏的结构。
教师先将人体心脏解剖图放大显示到银幕上，指导学生观察，引导学生回忆所学的人体四种基本组织，让学生讲出心脏的组成(板书)，然后，教师再播放人体心脏彩色解剖绘画复合片的课件，分部观察人体心脏的四个腔(板书)。
接着单片分部放映和心脏相连的几条大血管，并指导学生分层观察，最后，教师边讲边画出心脏结构简易黑板图。
示心房、心室及相连的血管，并用箭头标明血液流动的方向。
这样的教学，由分解到综合最后形成整体概念，重点突出，促进学生在理解的基础上，清楚地掌握人体心脏的结构。
4.在学生掌握心脏的结构及其相连血管知识的基础上，讲授心脏的瓣膜的位置及其开启关闭与心脏内血流方向的关系，这部分内容是本节课的难点，可利用电脑多媒体手段循序渐进地进行教学。
首先，指导学生阅读课文P32第二自然段，通过指导读书，培养学生的自学能力。
然后，播放人体心脏纵剖放大片于银幕上，让学生观察人体心脏瓣膜的位置与开关方向;紧接着播放人体心
脏横剖面的瓣膜放大片于银幕上，指导学生观察人体心脏瓣膜的分布及组成，并介绍人类患风湿性心脏病造成心脏瓣膜异常的治疗手段，在此进行理想教育。
为增强直观性，培养学生的观察能力，又播放了猪心解剖录象，使学生看到活生生的心脏，增强真实感，在看录像的同时，要求学生判定心脏的各个方位;学会识别心脏的四个腔;认识心脏瓣膜位置、形态、结构和开启方向，进一步促进学生牢固地掌握人体心脏的知识。
同时又让学生学习到了人体器官的解剖方法和观察方法，培养了学生的观察能力。
为了帮助学生进一步理解心脏瓣膜控制血流方向的作用，把血液在心脏内流动的多媒体动画课件播放到银幕上，显示血液在心脏内和与其相连的血管间的流动与心脏瓣膜开闭关系的情况。
在学生观看时，教师可设问：同学们在银幕上看到的血液如何流动?心脏的瓣膜有何作用? 让学生思考，从而归纳出瓣膜的开闭与血液流动的关系及瓣膜的作用。
这样，通过多层次、多方位的反复观察和教学，难点被逐一突破。
既提高学生的学习兴趣，发挥学生的学习主动性，又能让学生对所学知识牢固地、长久地保留在记忆中。
5.通过以上的学习，教师接着可提问：人体心脏的功能是什么? 从而归纳出人体心脏的功能(板书)，然后又问：体育锻炼和适宜体力劳动对心脏有何好处? 对学生进行卫生保健方面的教育。
Ⅲ、小结：(约3分钟)播放心脏解剖放大图，请学生自己归纳总结心脏的结构。
Ⅳ、课堂反馈：(约5分钟)把练习题显示到银幕上，让学生进行讨论、研究、选择出正确的答案，通过学生的回答，教师能了解到学生在课堂上对知识的掌握情况，及时地得到反馈信息。
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